CN214992241U

CN214992241U - Automatic buttonhole sewing machine

Info

Publication number: CN214992241U
Application number: CN202121412806.3U
Authority: CN
Inventors: 郑永兴; 庞小虎; 李路明
Original assignee: Xi'an Hankbute Intelligent Technology Co ltd
Current assignee: Xi'an Hankbute Intelligent Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-03
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses an automatic buttonhole sewing machine relates to sewing machine machinery technical field. The sewing machine comprises a sewing machine body, wherein a supporting plate is arranged on the sewing machine body, a rotating mechanism is arranged at the bottom of the supporting plate, a first reciprocating mechanism is arranged at the top of the supporting plate, the rotating mechanism comprises a first mounting frame, a ratchet wheel is connected onto the first mounting frame, the ratchet wheel is meshed with a first pawl and a second pawl, the first pawl and the second pawl are jointly hinged with a rotating piece at one end far away from the ratchet wheel, a driving assembly is arranged in the mounting frame, the driving assembly is hinged with the rotating piece, the ratchet wheel is connected with a rotating shaft, the rotating shaft penetrates through the supporting plate and is connected with a supporting table, a material placing plate is arranged on one side of the supporting table and is connected with the supporting table through a connecting piece, a clamping piece is arranged on one side of the material placing plate, and the material placing plate is connected with the first reciprocating mechanism in a sliding manner; therefore, the cloth fixed on the discharging plate can be automatically buttonhole by the effective matching of each mechanism and each component, the time of manual buttonhole locking and the output of physical force are saved, and the production speed is effectively improved.

Description

Automatic buttonhole sewing machine

Technical Field

The utility model relates to a sewing machine machinery technical field specifically is an automatic buttonhole sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-push embroidery, computer embroidery, etc. The buttonhole of the sewing machine is generally buttonhole or round hole of some fabrics, and the buttonhole is sewed by hand when the round hole is buttoned by many fabrics, which is not suitable.

The prior art has the following defects: the existing sewing machine can not well carry out quick buttonholing on the round hole on the cloth, and manual buttonholing is time-consuming and labor-consuming, often leads to slow production speed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model aims to provide an automatic keyhole sewing machine, can carry out the regulation of certain angle to fixing the cloth on the blowing board through setting up rotary mechanism, thereby make the hole of required keyhole can rotate a week better keyhole on the cloth, and then set up first reciprocating mechanism and can carry out the reciprocating motion with a supporting bench swing joint's blowing board in proper order in the vertical direction and horizontal direction, make the cloth once of every angle of rotation just can automatic keyhole, thereby cooperation rotary mechanism can carry out the keyhole of a week to the hole, thereby can carry out automatic keyhole to fixing the cloth on the blowing board through the effective cooperation of each mechanism and component, the time of saving artifical keyhole and the output of physical power, and then the effectual production speed that has improved.

The above object of the present invention can be achieved by the following technical solutions:

an automatic keyhole sewing machine comprises a sewing machine body, wherein a supporting plate is arranged at the bottom of a needle of the sewing machine body and fixedly connected with the sewing machine body, a rotating mechanism is arranged at the bottom of the supporting plate, a first reciprocating mechanism is arranged at the top of the supporting plate, the rotating mechanism comprises a first mounting frame fixedly connected with the supporting plate, a ratchet wheel with a vertically arranged axis is rotatably connected onto the first mounting frame, the ratchet wheel is meshed with a first pawl and a second pawl, one ends of the first pawl and the second pawl, which are far away from the ratchet wheel, are jointly hinged with a rotating piece, the rotating piece is rotatably connected with the first mounting frame, a driving assembly is arranged in the mounting frame, the driving assembly is hinged with the rotating piece, a coaxially arranged rotating shaft is fixedly connected to one side of the ratchet wheel, which is far away from the ground, the rotating shaft penetrates through the supporting plate and extends to a supporting table fixedly connected to the other side of the supporting plate, the support table is provided with a material placing plate on one side far away from the support plate, the material placing plate is movably connected with the support table through a connecting piece, the material placing plate corresponds to a needle of the sewing machine body, a clamping piece is arranged on one side of the material placing plate far away from the support table, and the material placing plate is connected with the first reciprocating mechanism in a sliding mode.

By adopting the technical scheme, the rotary mechanism is arranged, the rotary component is driven to swing in a certain arc line by the driving component in the rotary mechanism, so that the rotary component drives the first pawl and the second pawl to be meshed with the ratchet wheel, the ratchet wheel can rotate with a stay gap, the ratchet wheel can further drive the support table to rotate through the rotary shaft, the support table drives the discharge plate to rotate through the movable component, the discharge plate drives the cloth with the required lock hole to rotate with the stay gap, the cloth fixed on the discharge plate can be adjusted at a certain angle through the rotary mechanism, the hole with the required lock hole on the cloth can rotate for one circle, so that the lock hole is better, the first reciprocating mechanism can sequentially perform reciprocating actions in the vertical direction and the horizontal direction on the discharge plate movably connected with the support table, and the lock hole can be automatically locked once when the cloth rotates for one angle, thereby cooperation rotary mechanism can carry out the keyhole of a week to the hole to can carry out automatic keyhole to the cloth of fixing on the blowing board through the effective cooperation of each mechanism and component, save the time of artifical keyhole and the output of physical power, and then the effectual production speed that has improved.

The present invention may be further configured in a preferred embodiment as: the first reciprocating mechanism comprises a second mounting frame and a reciprocating shaft, the second mounting frame is fixedly connected with the support plate through a second reciprocating mechanism, the second mounting frame is slidably connected with the second reciprocating mechanism, the reciprocating shaft penetrates through and is slidably connected with the second mounting frame, a sliding block is fixedly connected with the middle part of the reciprocating shaft and is positioned in the second mounting frame, a connecting shaft is slidably connected in the sliding block, the sliding direction of the connecting shaft is perpendicular to the axis of the reciprocating shaft, one end, away from the sliding block, of the connecting shaft is detachably connected with a rotating wheel, one side, away from the connecting shaft, of the rotating wheel is provided with a first motor, the first motor is fixedly connected with the second mounting frame, the output end of the first motor is fixedly connected with the rotating wheel, and the axis of the first motor coincides with the axis of the rotating wheel, one end of the reciprocating shaft, which is close to the discharging plate, is fixedly connected with a connecting ring, and the connecting ring is sleeved on the discharging plate and is in sliding connection with the discharging plate.

Through adopting above-mentioned technical scheme, the second mounting bracket of setting, the reciprocating shaft, the sliding block, the connecting axle, the first reciprocating mechanism who rotates wheel and first motor and form can carry out reciprocating motion on the horizontal direction to the blowing board after breaking away from with a supporting bench, thereby make every reciprocating motion of blowing board once carry out the keyhole to hole site edge on the cloth, and then the cooperation through rotary mechanism can effectually carry out the keyhole of a week to the hole site on the cloth, make keyhole process convenient and fast, improve sewing machine's automation level, further rotate the wheel and the connecting axle is the adjustable through the position of dismantling the connection, thereby can effectual change reciprocating shaft reciprocating motion's displacement distance, and then the length of walking when having changed the keyhole.

The present invention may be further configured in a preferred embodiment as: the second reciprocating mechanism includes two slide bars of mutual parallel arrangement, the slide bar with backup pad fixed connection just the axis of slide bar with the backup pad is perpendicular, two sliding connection has the reciprocating plate that the level set up between the slide bar, reciprocating plate with second mounting bracket fixed connection, reciprocating plate keeps away from the spout has been seted up to second mounting bracket one side, spout sliding connection has the dwang, the dwang is kept away from reciprocating plate one end fixedly connected with second motor, the second motor with backup pad fixed connection.

Through adopting above-mentioned technical scheme, set up two slide bars and reciprocating plate, the spout, the second reciprocating mechanism that dwang and second motor formed can the first reciprocating mechanism of effectual cooperation carry out the ascending motion of vertical side, make the blowing board through moving part and brace table swing joint can carry out the ascending displacement of vertical side, and then make the blowing board break away from and the joint with the brace table has the frequency, make the implementation and the operation of first reciprocating mechanism, thereby improved the quick keyhole to hole site on the cloth through the effective cooperation with first reciprocating mechanism and rotary mechanism.

The present invention may be further configured in a preferred embodiment as: the drive assembly include with rotate an articulated rack, the rack with the lateral wall sliding connection of first mounting bracket, the rack is kept away from rotate an one end fixedly connected with spring, the spring is kept away from the one end of rack with first mounting bracket fixed connection, rack toothing has the pinion, pinion one side is equipped with the third motor, the third motor with first mounting bracket fixed connection and output with pinion fixed connection.

Through adopting above-mentioned technical scheme, the third motor of setting can drive half gear and rack and carry out spaced meshing, it can make the rack carry out effectual reseing to set up the spring, thereby can rotate the piece through the rack push-and-pull and make a pawl and No. two pawls and ratchet mesh, make the ratchet carry out spaced rotation, the slew velocity that simultaneously can effectual change ratchet through the slew velocity of adjusting motor, thereby be convenient for cooperate other mechanisms to carry out the completion of keyhole work to the cloth, convenient and fast and simple structure.

The present invention may be further configured in a preferred embodiment as: the connecting piece include with brace table fixed connection's prism, the blowing board be close to prismatic one side seted up with prismatic anastomotic joint groove, prismatic can block locate in the joint groove.

Through adopting above-mentioned technical scheme, set up the connecting piece into prismatic can further effectual cooperation joint groove carry out certain angle's rotation to the blowing board under rotary mechanism's drive, more can improve the rotation precision of blowing board.

The present invention may be further configured in a preferred embodiment as: the side wall of the rotating wheel close to the connecting shaft is provided with a plurality of adjusting holes, the size of each adjusting hole is matched with that of the connecting shaft, and the connecting shafts can be inserted into different adjusting holes.

Through adopting above-mentioned technical scheme, set up a plurality of regulation holes, it is further convenient for walk line length when walking the keyhole to control through the hookup location of adjusting connecting axle and rotation wheel to can satisfy the keyhole requirement of different walk line lengths, improved sewing machine's suitability.

The present invention may be further configured in a preferred embodiment as: the sewing machine body is fixedly connected with a control panel, and the control panel is electrically connected with the first motor, the second motor and the third motor respectively.

Through adopting above-mentioned technical scheme, set up control panel, and then the operating parameter that sets up different motors on control panel can effectually open and stop control to first motor, second motor and third motor, guarantees going on smoothly of keyhole work, improves sewing machine's intellectuality.

The present invention may be further configured in a preferred embodiment as: the supporting plate is far away from one side of the ground and is fixedly connected with a vertically arranged guide rod, and the guide rod is connected with the second mounting frame in a sliding mode through a guide block.

Through adopting above-mentioned technical scheme, set up guide bar and guide block and can further cooperate the second reciprocating mechanism to lead and spacing first reciprocating mechanism's lift, further improved the stability of first reciprocating mechanism when using.

To sum up, the utility model discloses a following at least one useful technological effect:

1. a rotating mechanism is arranged, a driving component in the rotating mechanism drives a rotating piece to swing in a certain arc line, so that the rotating piece drives a first pawl and a second pawl to be meshed with a ratchet wheel, the ratchet wheel rotates at a certain angle, the ratchet wheel can rotate at a certain stopping gap, and further the ratchet wheel rotates to drive a support table to rotate through a rotating shaft, the support table drives a discharging plate to rotate through a moving piece, so that the discharging plate drives the cloth with the required lock hole to rotate at the certain stopping gap, so that the cloth fixed on the discharging plate can be adjusted at a certain angle through the rotating mechanism, the hole with the required lock hole in the cloth can rotate for one circle to better lock the hole, and a first reciprocating mechanism is arranged to sequentially reciprocate the discharging plate movably connected with the support table in the vertical direction and the horizontal direction, so that the automatic lock hole can be realized once when the cloth rotates for one angle, the hole can be keyhole for one circle by matching with the rotating mechanism, so that the cloth fixed on the discharging plate can be automatically keyhole by effectively matching of various mechanisms and components, the time and physical output of manual keyhole are saved, and the production speed is effectively improved;

2. the second mounting frame, the reciprocating shaft, the sliding block, the connecting shaft, the rotating wheel and the first motor are arranged to form a first reciprocating mechanism, so that the discharging plate separated from the supporting table can reciprocate horizontally, the edge of a hole on the cloth can be buttonhole once when the discharging plate reciprocates once, and the hole on the cloth can be buttonhole for a circle effectively by matching of the rotating mechanism, so that the buttonhole procedure is convenient and quick, the automation level of the sewing machine is improved, the position of the detachable connection between the rotating wheel and the connecting shaft can be adjusted, the displacement distance of the reciprocating motion of the reciprocating shaft can be effectively changed, and the length of a line during buttonhole movement is changed;

3. through setting up two slide bars and reciprocating plate, the spout, the second reciprocating mechanism that dwang and second motor formed can the first reciprocating mechanism of effectual cooperation carry out the ascending motion of vertical side, make the blowing board through moving part and brace table swing joint can carry out the ascending displacement of vertical side, and then make the blowing board break away from and the joint with the brace table has the frequency, make the implementation and the operation of first reciprocating mechanism, thereby improved the quick keyhole to hole site on the cloth through the effective cooperation with first reciprocating mechanism and rotary mechanism.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a schematic structural view of a second reciprocating mechanism of the present invention;

fig. 5 is a schematic structural view of the rotating mechanism of the present invention;

fig. 6 is a schematic structural diagram of the driving assembly of the present invention.

Reference numerals: 1. a sewing machine body; 2. a support plate; 3. a rotation mechanism; 31. a first mounting bracket; 32. a ratchet wheel; 33. a first pawl; 34. a second pawl; 35. a rotating member; 36. a drive assembly; 361. a rack; 362. a spring; 363. a half gear; 364. a third motor; 37. a rotating shaft; 4. a support table; 5. a material placing plate; 6. a connecting member; 61. a prism; 62. a clamping groove; 7. a clamping member; 8. a first reciprocating mechanism; 81. a second mounting bracket; 82. a reciprocating shaft; 83. a second reciprocating mechanism; 831. a slide bar; 832. a reciprocating plate; 833. a chute; 834. rotating the rod; 835. a second motor; 84. a slider; 85. a connecting shaft; 86. a rotating wheel; 87. a first motor; 88. a connecting ring; 9. an adjustment hole; 10. a control panel; 11. a guide bar; 12. and a guide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides an automatic keyhole sewing machine, which comprises a sewing machine body 1, wherein a support plate 2 is arranged at the bottom of a needle of the sewing machine body 1, the support plate 2 is fixedly connected with the sewing machine body 1, and preferably, the support plate 2 is horizontally arranged, thereby providing support for the installation of each subsequent mechanism and limiting the position of the subsequent needle; as shown in fig. 5 and 6, in order to facilitate the sewing machine to automatically lock holes on the cloth, thereby improving the production efficiency, a rotating mechanism 3 is further arranged at the bottom of the supporting plate 2, a first reciprocating mechanism 8 is arranged at the top of the supporting plate 2, the rotating mechanism 3 comprises a first mounting frame 31 fixedly connected with the supporting plate 2, a ratchet 32 with a vertical axis is rotatably connected with the first mounting frame 31, preferably, the axis of the ratchet 32 is vertically arranged, the ratchet 32 is engaged with a first pawl 33 and a second pawl 34, preferably, the arrangement form of the first pawl 33 and the second pawl 34 can refer to fig. 6, the ratchet 32 can be rotated in the same direction by matching the first pawl 33 and the second pawl 34, one ends of the first pawl 33 and the second pawl 34 far away from the ratchet 32 are hinged with a rotating member 35, the rotating member 35 is rotatably connected with the first mounting frame 31, a driving assembly 36 is arranged in the mounting frame, the driving component 36 is hinged with the rotating component 35, so that the driving component 36 drives the rotating component 35 to swing in a certain arc, the rotating component 35 drives the first pawl 33 and the second pawl 34 to be meshed with the ratchet wheel 32 and drive the ratchet wheel 32 to rotate at a certain angle, the ratchet wheel 32 can rotate with a stopping gap, one side, far away from the ground, of the ratchet wheel 32 is fixedly connected with a coaxially arranged rotating shaft 37, the rotating shaft 37 penetrates through the supporting plate 2 and extends to the other side of the supporting plate 2 to be fixedly connected with the supporting platform 4, one side, far away from the supporting plate 2, of the supporting platform 4 is provided with the discharging plate 5, the discharging plate 5 is movably connected with the supporting platform 4 through a connecting piece 6, the supporting platform 4 is used for supporting the discharging plate 5 and assisting in rotating the rotating mechanism 3, the shape of the supporting platform is not limited, but the supporting platform is suitable for being in the same as the shape of the discharging plate 5, the appearance is attractive, and the use space is also reduced; the blowing board 5 corresponds with the eedle of sewing machine body 1, the blowing board 5 is equipped with holder 7 far away from brace table 4 one side, it does not do the restriction to be preferred for holder 7, it can guarantee that the cloth can not take place the skew after pressing from both sides tightly on blowing board 5, blowing board 5 and 8 sliding connection of first reciprocating mechanism, the ring channel should be seted up for the lateral wall of blowing board 5 more preferably, thereby be convenient for follow-up and 8 sliding connection of first reciprocating mechanism, can guarantee simultaneously that first reciprocating mechanism 8 does not influence rotary mechanism 3 and rotates blowing board 5.

As shown in fig. 2 and 4, the first reciprocating mechanism 8 includes a second mounting frame 81 and a reciprocating shaft 82, preferably, the second mounting frame 81 is preferably configured to be U-shaped, so as to facilitate the movement of the subsequent reciprocating shaft 82 and the installation of other components, the second mounting frame 81 is fixedly connected to the supporting plate 2 through a second reciprocating mechanism 83, the second mounting frame 81 is slidably connected to the second reciprocating mechanism 83, the reciprocating shaft 82 penetrates through and is slidably connected to the second mounting frame 81, preferably, the length of the reciprocating shaft 82 is preferably limited according to the actual production requirement, so as to ensure that the reciprocating shaft 82 can drive the material discharging plate 5 to perform a certain displacement motion, so as to facilitate the better completion of the keyhole operation, a sliding block 84 is fixedly connected to the middle part of the reciprocating shaft 82, the sliding block 84 is located in the second mounting frame 81, a connecting shaft 85 is slidably connected to the sliding block 84, preferably, a sliding groove for facilitating the sliding of the sliding block 85 is preferably formed on the sliding block 84, the sliding groove may also be disposed through the sliding block 84, so as to facilitate the sliding of the connecting shaft 85 and the sliding block 84, the sliding groove is not shown in the figure, the sliding direction of the connecting shaft 85 is perpendicular to the axis of the reciprocating shaft 82, the end of the connecting shaft 85 away from the sliding block 84 is detachably connected with a rotating wheel 86, preferably, the detachable connection of the connecting shaft 85 and the rotating wheel 86 can be realized in a clamping manner, one side of the rotating wheel 86 away from the connecting shaft 85 is provided with a first motor 87, the first motor 87 is fixedly connected with the second mounting frame 81, the output end of the first motor 87 is fixedly connected with the rotating wheel 86, the axis of the first motor 87 coincides with the axis of the rotating wheel 86, one end of the reciprocating shaft 82, which is close to the discharging plate 5, is fixedly connected with a connecting ring 88, the connecting ring 88 is sleeved on the discharging plate 5 and is in sliding connection with the discharging plate 5, and preferably, the connecting ring 88 is sleeved on the side wall of the discharging plate 5 and is in sliding connection with a preset annular groove in the side wall of the discharging plate 5.

As shown in fig. 4, the second reciprocating mechanism 83 includes two sliding rods 831 arranged in parallel, the sliding rods 831 are fixedly connected with the supporting plate 2, the axes of the sliding rods 831 are perpendicular to the supporting plate 2, preferably, the other ends of the sliding rods 831 are suitable for being fixedly connected with the sewing machine body 1, so as to effectively improve the stability of the second reciprocating mechanism 83, a horizontally arranged reciprocating plate 832 is slidably connected between the two sliding rods 831, the reciprocating plate 832 is fixedly connected with the second mounting frame 81, a sliding groove 833 is formed in one side of the reciprocating plate 832 far away from the second mounting frame 81, the sliding groove 833 is slidably connected with a rotating rod 834, preferably, the rotating rod 834 is arranged in an L shape, so as to facilitate the rotating rod 834 to drive the reciprocating plate 832 to perform vertical displacement, a second motor 835 is fixedly connected to one end of the rotating rod 834 far away from the reciprocating plate 832, the second motor 835 is fixedly connected with the supporting plate 2, so that the second reciprocating mechanism 83 can effectively cooperate with the first reciprocating mechanism 8 to perform vertical movement when in use, the discharging plate 5 movably connected with the supporting table 4 through the moving part can move in the vertical direction, so that the discharging plate 5 and the supporting table 4 are separated and clamped frequently, the first reciprocating mechanism 8 is promoted to implement and operate, and quick lock holes of hole positions on the cloth are improved through effective matching of the first reciprocating mechanism 8 and the rotating mechanism 3.

As shown in fig. 5 and 6, the driving assembly 36 includes a rack 361 hinged to the rotating member 35, the rack 361 is slidably connected to a side wall of the first mounting frame 31, a spring 362 is fixedly connected to an end of the rack 361 far from the rotating member 35, an end of the spring 362 far from the rack 361 is fixedly connected to the first mounting frame 31, so that the spring 362 can effectively reset the rack 361, the rack 361 is engaged with a half gear 363, a third motor 364 is provided on one side of the half gear 363, the third motor 364 is fixedly connected to the first mounting frame 31 and has an output end fixedly connected to the half gear 363, the third motor 364 can drive the half gear 363 and the rack 361 to be in spaced engagement, so that when in use, the rotating member 35 can be pushed and pulled by the rack 361 to cause the first pawl 33 and the second pawl 34 to be engaged with the ratchet 32, so that the ratchet 32 can rotate at spaced intervals, and the rotation speed of the ratchet 32 can be effectively changed by adjusting the rotation speed of the ratchet motor, thereby be convenient for cooperate other mechanisms to carry out the completion of keyhole work to the cloth, convenient and fast and simple structure.

As shown in fig. 3, the connecting piece 6 includes the prismatic 61 with a supporting bench 4 fixed connection, and the one side that the blowing board 5 is close to prismatic 61 is seted up with the anastomotic joint groove 62 of prismatic 61, but prismatic 61 card locate in the joint groove 62, thereby it should set up to regular hexagonal prism 61 for prismatic 61 better to guarantee that rotary mechanism 3 can effectually rotate blowing board 5, avoids having the phenomenon of skidding to appear, more can improve the rotation accuracy of blowing board 5.

As shown in fig. 4, a plurality of adjusting holes 9 are formed in the side wall of the rotating wheel 86 close to the connecting shaft 85, the size of each adjusting hole 9 is matched with the connecting shaft 85, the connecting shaft 85 can be inserted into different adjusting holes 9, preferably, the axes of the adjusting holes 9 are arranged in parallel, and the axes of the adjusting holes 9 are parallel to the axis of the rotating wheel 86, so that the adjusting holes 9 are formed, the wiring length during the wiring process is further controlled by adjusting the connecting position of the connecting shaft 85 and the connecting position of the rotating wheel 86, the wiring length requirements of different wiring lengths can be met, and the applicability of the sewing machine is improved.

As shown in fig. 1, fixedly connected with control panel 10 on sewing machine body 1, control panel 10 is connected in first motor 87, second motor 835 and third motor 364 electricity respectively, and then the operating parameter that sets up different motors on control panel 10 can be effectual can to first motor 87, second motor 835 and third motor 364 open and stop control, guarantees going on smoothly of keyhole work, improves sewing machine's intellectuality.

As shown in fig. 2, one side of the supporting plate 2, which is far away from the ground, is fixedly connected with a vertically arranged guide rod 11, the guide rod 11 is slidably connected with the second mounting rack 81 through a guide block 12, and the guide rod 11 and the guide block 12 can further cooperate with the second reciprocating mechanism 83 to guide and limit the lifting of the first reciprocating mechanism 8, so that the stability of the first reciprocating mechanism 8 in use is further improved.

The implementation principle of the embodiment is as follows: when in use, cloth to be processed is firstly placed on the material placing plate 5 by manpower to be aligned and adjusted with a needle of the sewing machine body 1, and then the cloth is clamped by the clamping piece 7, the rotating piece 35 is driven to swing in a certain arc by the driving component 36 in the rotating mechanism 3, so that the rotating piece 35 drives the first pawl 33 and the second pawl 34 to be meshed with the ratchet wheel 32, the ratchet wheel 32 rotates in a certain angle, the ratchet wheel 32 can rotate in a stopping gap, the ratchet wheel 32 rotates to drive the supporting table 4 to rotate through the rotating shaft 37, the supporting table 4 drives the material placing plate 5 to rotate through the moving piece, the material placing plate 5 drives the cloth needing to be locked in a hole to be locked to rotate in a certain angle, the cloth fixed on the material placing plate 5 can be adjusted in a certain angle by the rotating mechanism 3, and the hole needing to be locked on the cloth can rotate for one circle, thereby achieving better locking, and then set up first reciprocating mechanism 8 and can carry out the reciprocating motion of going up and the horizontal direction in proper order with brace table 4 swing joint's blowing board 5 for the cloth just can automatic keyhole once per angle of rotation, thereby cooperation rotary mechanism 3 can carry out the keyhole of a week to the hole, thereby can carry out automatic keyhole to the cloth of fixing on blowing board 5 through the effective cooperation of each mechanism and component, the time of saving artifical keyhole and the output of physical power, and then the effectual production speed that has improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automatic buttonhole sewing machine, includes sewing machine body (1), the eedle bottom of sewing machine body (1) is equipped with backup pad (2), backup pad (2) with sewing machine body (1) fixed connection, its characterized in that: the bottom of the supporting plate (2) is provided with a rotating mechanism (3), the top of the supporting plate (2) is provided with a first reciprocating mechanism (8), the rotating mechanism (3) comprises a first mounting frame (31) fixedly connected with the supporting plate (2), the first mounting frame (31) is rotatably connected with a ratchet wheel (32) with a vertically arranged axis, the ratchet wheel (32) is meshed with a first pawl (33) and a second pawl (34), one ends of the first pawl (33) and the second pawl (34) far away from the ratchet wheel (32) are hinged with a rotating piece (35) together, the rotating piece (35) is rotatably connected with the first mounting frame (31), a driving assembly (36) is arranged in the mounting frame, the driving assembly (36) is hinged with the rotating piece (35), and the ratchet wheel (32) is far away from one side of the ground and is fixedly connected with a coaxial rotating shaft (37), pivot (37) run through backup pad (2) and extend to the opposite side fixedly connected with brace table (4) of backup pad (2), keep away from brace table (4) backup pad (2) one side is equipped with blowing board (5), blowing board (5) with brace table (4) pass through connecting piece (6) swing joint, blowing board (5) with the eedle of sewing machine body (1) corresponds, blowing board (5) are kept away from brace table (4) one side is equipped with holder (7), blowing board (5) with first reciprocating mechanism (8) sliding connection.

2. An automatic keyhole sewing machine according to claim 1, characterized in that: the first reciprocating mechanism (8) comprises a second mounting frame (81) and a reciprocating shaft (82), the second mounting frame (81) is fixedly connected with the supporting plate (2) through a second reciprocating mechanism (83), the second mounting frame (81) is slidably connected with the second reciprocating mechanism (83), the reciprocating shaft (82) penetrates through and is slidably connected with the second mounting frame (81), a sliding block (84) is fixedly connected with the middle of the reciprocating shaft (82), the sliding block (84) is located in the second mounting frame (81), a connecting shaft (85) is slidably connected with the sliding block (84), the sliding direction of the connecting shaft (85) is perpendicular to the axis of the reciprocating shaft (82), one end of the connecting shaft (85) is far away from the sliding block (84) and is detachably connected with a rotating wheel (86), and a first motor (87) is arranged on one side of the rotating wheel (86) far away from the sliding block (85), first motor (87) with second mounting bracket (81) fixed connection, just the output of first motor (87) with rotate wheel (86) fixed connection, the axis of first motor (87) with the axis coincidence of rotating wheel (86), reciprocating shaft (82) are close to flitch (5) one end fixedly connected with go-between (88), go-between (88) cover is located on flitch (5) and with flitch (5) sliding connection.

3. An automatic keyhole sewing machine according to claim 2, characterized in that: second reciprocating mechanism (83) including two slide bars (831) of mutual parallel arrangement, slide bar (831) with backup pad (2) fixed connection just the axis of slide bar (831) with backup pad (2) are perpendicular, two sliding connection has reciprocating plate (832) that the level set up between slide bar (831), reciprocating plate (832) with second mounting bracket (81) fixed connection, reciprocating plate (832) are kept away from spout (833) have been seted up to second mounting bracket (81) one side, spout (833) sliding connection has dwang (834), dwang (834) are kept away from reciprocating plate (832) one end fixedly connected with second motor (835), second motor (835) with backup pad (2) fixed connection.

4. An automatic keyhole sewing machine according to claim 3, characterized in that: drive assembly (36) include with rotate piece (35) articulated rack (361), rack (361) with the lateral wall sliding connection of first mounting bracket (31), keep away from rack (361) rotate piece (35) one end fixedly connected with spring (362), the one end that rack (361) were kept away from in spring (362) with first mounting bracket (31) fixed connection, rack (361) meshing has half gear (363), half gear (363) one side is equipped with third motor (364), third motor (364) with first mounting bracket (31) fixed connection and output with half gear (363) fixed connection.

5. An automatic keyhole sewing machine according to claim 1, characterized in that: the connecting piece (6) comprises a prism (61) fixedly connected with the supporting table (4), one side, close to the prism (61), of the material placing plate (5) is provided with a clamping groove (62) matched with the prism (61), and the prism (61) can be clamped in the clamping groove (62).

6. An automatic keyhole sewing machine according to claim 2, characterized in that: the side wall of the rotating wheel (86) close to the connecting shaft (85) is provided with a plurality of adjusting holes (9), the size of each adjusting hole (9) is matched with that of the connecting shaft (85), and the connecting shaft (85) can be inserted into different adjusting holes (9).

7. An automatic keyhole sewing machine according to claim 4, characterized in that: the sewing machine is characterized in that a control panel (10) is fixedly connected to the sewing machine body (1), and the control panel (10) is electrically connected to the first motor (87), the second motor (835) and the third motor (364) respectively.

8. An automatic keyhole sewing machine according to claim 2, characterized in that: the supporting plate (2) is far away from the guide rod (11) which is vertically arranged on one side of the ground, and the guide rod (11) is connected with the second mounting frame (81) in a sliding mode through a guide block (12).